21 Nov
2009
21 Nov
'09
4:42 a.m.
On Fri, 20 Nov 2009, Fred Cisin wrote:
Did I miss something? :) Neither my Amiga nor the 1581 uses ED media.
Are you possibly referring to the CMD FD4000 drive? it was for the
Commodore IEC bus and was an ED mech if memory serves.
g.
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> which
allowed for "media select" on density. Finding DSED media
> might be an issue. Finding *good* DSED media, harder still.
On Fri, 20 Nov 2009, Gene Buckle wrote:
I've had very good luck with Athana DSDD
3.5" media when used in my Amiga
and 1581 drives.
ED media is a different chemical composition. In addition to coercivity
differences (600 for "DSDD", about 730 for "DSHD"), ED apparently
does
vertical recording on Barrium-Ferrite? media, with a 1000K bits per second
data transfer rate, resulting in 2.8M (called "2.88M" by IBM, called
"4M"
by Next (unformatted capacity))
My experience with PS/2 "2.88", and MicroSolutions "Backpack 2.88"
were
somewhat lower reliability than conventional 1.4M storage.